Anyway, what I did was make that my active data file, and check its two parent files. I brought up the object in the cell view, right-click to edit, choose Edit Base, then provide a new ID and Name before hitting OK. That gives me the following question:
"Old ID: LecternAcademy New ID: LecternAcademy1
You have changed the Form's Editor ID.
Create a new Form?"
If I choose yes, then save the data, I get the following message:
"ModelLoader still has 6 NIF files.
Continue Playing?"
I've chosen to Yes to All, but I backed up the ESP before making adjustments, just in case.